Splash lubricating system for gas-engines



C. J. GUSTAFSON.

SPLASH LUBRICATING SYSTEM FOR GAS ENGINES.

APPLICATION FILED JUNE 26, 1916.

' 1,337,013. Patented Apr. 13, 1920.

2 SHEETS-SHEET I.

C. J. GUSTAFSON.

SPLASH LUBRICATING SYSTEM FOR GAS ENGINES.

APPLlCATlOH FILED JUNE 26, l9l6.

1337,0153. Patented Apr. 13, 1

WHIWHHHHW wih w CARL J'OI-IAN' GUSTAFSON, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO HENDEE MANUFACTURING COMPANY, OF SPRIN OF MASSACHUSETTS.

GFIELD, MASSACHUSETTS, A CORPORATION SPLASH L'C'BRICATING- SYSTEM FOR GAS-ENGINES.

Specification of Letters Patent.

Patented Apr. 13, 1920.

Application filed June 26, 1916. Serial No. 105,976.

To all whom it may concern:

Be it known that I, CARL J OHAN GUs'rAF- SON, a subject of the King of Sweden, re-

siding at Springfield, in the county of Hampden, State of Massachusetts, have invented certain new and useful Improvements in Splash Lubricating Systemsfor Gas-Engines, of which the following 15 a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

My invention relates to new and useful improvements in splash lubricating systems for gas engines.

object of my invention is to provlde a splash lubricating system for gas engines in which the forward cylinder or the cyllnder on the side of the crank casing, where the cranks move downwardly, is thoroughly lubricated as well as the cylinder arranged on the opposite side of the crank casing.

Another object of my invention is to provide a splash lubricating system in which a positive feed is provided for the forward cylinder and at the same time provide a sys tem simple in construction and having certain details of arrangement and combination of parts hereinafter more fully described.

In the accompanying drawings Figure 1 is a side elevation of a gas engine and its crank case as applied to a motor cycle frame with the side plate of the crank case removed and showing the oil feed passage in dotted lines.

Fig. 2 is a transverse vertical sectional view taken on the line A--A of Fig. 1, and looking in the directionof the arrow.

Fig. 3 is a vertical longitudinal section showing the registering lubricating passages in the crank and engine cylinder.

Fig. 4 is a vertical longitudinal view of a modified form of oil passage in the crank case.

Referring now to the drawings, 1 represents the crank case of a twin cylinder gas engine which is secured to the frame 2 of the motor cycle by means of bolts 8. Secured to the opposite sides of the crank case are the two horizontally arranged cylinders 4 and 5. The crank shaft 6 as is well understood, is mounted in the crank case and the cranks 6 travel in the direction of the arrow.

The crank case is partially filled with oil and as the cranks strike the oil it splashes it rearwardly and thoroughly lubricates the rear cylinder but owing to the direction of travel of the crank, oil will not be fed to the forward cylinder but is splashed to the upper end of the crank case. Secured to the inside of the upper end of the crank case adjacent the forward cylinder is a scoop 7 which is adapted to catch a portion of the oil splashed to the upper end of the crank case. This scoop 7 extends but a very slight distance into the crank case so that it does not interfere with the travel of the cranks.

The crank case 1 just above the scoop 7 has a downwardly extending oblique passage 8 which registers with a downwardly extending oblique passage 9 in the enlarged portion 10 on the upper side of the cylinder 4. The end of the passage 9 communicates with the interior bore 11 of the cylinder 4 and at such a point that it will not at an time be uncovered by the outer end of the piston in the cylinder on its extreme inward limit of movement. The engine cylinders and crank case are bolted together in any desired manner having the passages 8 and 9 registering so that a continuous passage is formed. The cylinder 4 is the forward cylinder and in motor cycles when going up grade, the passage will always be extending downwardly so that no matter how great the grade is, the oil, by gravity, will be fed to the cylinder 4.

In the modification shown in Fig. 4 of the drawings, the scoop 7 for catching the oil and guarding the passage is dispensed with and the inner end of the passage 8 in the crank case is enlarged so as to form a mouth 12 into which the oil is thrown from the crank case by the cranks and is conveyed by gravity to the cylinder 4 by the passages 8 and 9 in the same manner as described in the preferred form.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

A splash lubricating system for double opposed horizontally arranged cylinders comprising the central crank case adapted to hold a quantity of lubricant, a shaft therein, cranks on said shaft and rotating through said oil whereby the same is splashed into one of said cylinders, an oil passage arranged in the wall of the other cylinder and communicating therewith, said 5 passage being disposed tangentially of the path of travel of the cranks whereby the oil is thrown by the cranks into said passage CARL JOHAN GUSTAFSON.

Witnesses:

JOHN D. STEPHENs,

JOHN T. ORoNIN. 

